ID 2.1.1.1 DE nicotinamide N-methyltransferase. CA nicotinamide + S-adenosyl-L-methionine = 1-methylnicotinamide + CA S-adenosyl-L-homocysteine. DR P34254, NNMT1_CAEEL; P40261, NNMT_HUMAN ; O55239, NNMT_MOUSE ; DR Q06AV1, NNMT_PIG ; //